Base-board radiators



Aprll 18, 1961 A. w. LUNDsTRUM BASE-BOARD RADIAToRs 4 Sheets-Shee 1Filed Sept. 19. 1957 INVENTOR. Allon W. Lunds'rrum BVMW.

ATTORNEYS April 18, 1951 A.w.LUNDs1-RUM BASE-BOARD RADIATORS 4SheetS-Sheet 2 Filed Sept. 19. 1957 v/llll/ INVEN'TR. Allan W. Lunds'rrurm ATTORNEYS I April 18, 1961 A. w. LuNDsTRUM 2,980,402

BASE-BOARD RADIATORS Filed Sept. 19, 1957 4 sheets-Sheet s l 3'8 'l l IlI l L 1i FIGA! INVENTOR. Allon W. Lunds-'rrum 12x/1,7% .wa

I ATTORNEYS April 13, 1961 A. w. LUNDsTRuM 2,980,402

BASE-BOARD RADIATORS Filed SeApt. 19, 1957 4 Sheets-Sheet 4 39u 44 sob30C 30d l, Q ,l l f H-IIIIIIIIIIIHIIIIIHIIIHIHIIIIIIIIIIIIHIIlIIIIIIIIIIIHIIIHIIIIIIIIHHIIIIII||||l|||"\ 26v 2O 28 F|G.I5 FIGJGINVENToR. Allan W.Lundstrum Byhmgw, Mm

ATTOR N EYS arent 2,980,402 Patented Apr.

BASE-BOARD RAnrArons Allan W. Lundstrum, Ohio Fuel Gas Co., 99 N. FrontSt., Columbus, Ghio Filed Sept. 19, 1957, Ser. No. 685,036

6 Claims. (Cl. 257-133) This invention relates to radiators for spaceheating and more specifically to a novel and improved heat radiator forheating homes, oiiices and the like that is particularly useful as aso-called base-board radiator.

Many types of radiators for Yspace heating have been proposed and knownstructures have not been found entirely satisfactory for a number ofreasons, among them being the relatively high cost of manufacture andinstallation. While base-board radiators are generally fabricated insections, each section is generally formed of a number of individualcomponents for assembly when the equipment is installed. This greatlycomplicates installation procedures and adds materially to the cost ofthe heating plant. Other disadvantages of prior known radiators of thebase-board type include the relatively inefficient utilization of spaceto obtain maximum transfer of heat to the ambient air, `the relativelycomplicated mounting procedure and the requirement of special tools andequipment for assembly and joinder of the sections.

The above and other disadvantages of prior radiators are overcome withthis invention which is characterized by its simplicity, ease ofinstallation, and improved etliciency and appearance.

Another object of this invention is to provide a basic heat exchangersection of utility especially in and for sectional base-board radiatorsand incorporating on one attractive die cast part a channel for a heatcarrying fluid, a channel for directing air being heated across theheated surface, sturdy and damage-resistant heat conducting tins, and amounting therefor which will enable substantially unrestricted expansionand contraction of the section or sections due to temperature changes.

Another object of the invention resides in the provision of a sectionalbase-board radiator employing such basic sections that affords etiicientutilization of space for maximum transfer of heat to the air and whosesections are provided with improved telescopic connectors which greatlyfacilitate coupling the sections one' to the other so that they may bejoined together using a drive't joint with suitable adhesive sealant'anddesired lengths achieved without cutting, iitting,v threading, weldingor soldering.

Still another object of the invention is the provision of au improvedsectional base-board radiator wherein each section constitutes acomplete, substantially unitary structure that can be readily attachedto adjoining sections and to a supporting wall and is soV constructedand arranged as todirect heat away from the wall to prevent wallstreaking.

A further object of the invention resides in the provision of novelinput and output terminal sections for such improved basic heatexchanger sections, which are die cast and permit easy and quickconnection to such sections and which make possible easy and quick connections to fluid conducting tubes or pipes either from below throughthe oor or from the back through the wall, whichever is more convenient,with minimum labor and structural changes.

A still further object of the invention resides in the provision of asimple and inexpensive valve as a part of one terminal.

The above and other objects and advantages of the invention will becomemore evident from the following description and accompanying drawingsforming part of this application.

In the drawings:

Figure l is a front elevational view of a sectional baseboard radiatorin accordance with this invention;

Figure 2 is an enlarged fragmentary front View in partial section of thebase-board radiator of Figure 1;

Figure 3 is a cross sectional View of the input valving means takenalong the line 3 3 of Figure l;

Figure 4 is a cross sectional View taken along the line 4 4 of Figure 2;

Figure 5 is a top view of the' input terminal means of Figure 2 withvthe valving means removed;

Figure 6 is a top view of the output terminal of Figure 2;

Figure 7 is a side elevational view of the input terminal taken in the`direction of the arrows 7 of Figure 5;

Figure 8 shows a side elevational view 'of the output terminal taken inthe direction of arrows S of Figure 6;

Figure 9 is a rear View of a heat exchanger section of the base-boardradiator of Figure l;

Figure 10 is a cross sectional view taken along the line Mi-10 of Figure9;

Figure l1 is a cross sectional view of the heat exchanger section takenalong the line 1li-11 of Figure 9;

Figure l2 is a front elevational view of a modified embodiment of theinvention;

Figure 13 is an enlarged fragmentary section of the embodiment of Figurel2 illustrating the coupling of a radiator section to the input terminalsection;

Figure 14 is an enlarged `fragmentary section of the embodiment ofFigure l2 illustrating the coupling between a radiator section and theoutput terminal section;

Figure 15 is a cross sectional view taken along the line 15-15 of Figure13; and

Figure 16 is a cross sectional view of Figure 14, taken along the line3.6-16 thereof.

Referring to Figure l, the base-board radiator in accordance with theinvention is denoted by lthe numeral 20 and includes a heat exchangerhaving a plurality of similar heat exchanger sections 24a to 24d, aninput terminal 26 for connecting the heat exchanger to a fluid inletpipe 32, and an output terminal 28 for connecting the heat exchanger toa Huid return 34. 'l'lhe heat exchanger sections 246.' through 24d arecoupled to each other by telescopic coupling means 30h, 30e and 30d.Similar coupling means 30a and 30e connect the heat exchanger sectionsto the input terminal 26 and to the output terminal 28. Since the heatexchanger sections 24a through 2li-d and the coupling means 30a .through30e are substantially identical, it is possible to assemble a base-boardradiator using any desired number of sections in series with the endsbeing terminated by the terminal members 26 and 28.

More specifically and with reference to Figures 2 through ll, each heatexchanger section 24a through 24d includes a conduit di?, a plurality ofns 42, a deector 44 and a mounting hole 46. Each section is pref; erablyfabricated by die casting with the conduit 40 and the fins d2 formedintegrally one with the other. The conduit 4t) for the heated fluid istapered in plan as w-ill be observed from Fig. 4. it has its smallestsection in the center and gradually increases in size toward both ends,thus permitting the core used in the die casting to be withdrawn.Notwithstanding this gradually increasing across-section, the front andrear walls of theV heat exchangerrsection are maintained at asubstantially j ..1 'Y v y assegna form thickness over substantially thelength of the'co'nduit, thus ensuring the preservation of maximumstrength and most eicient utilization of the die casting material. itbe-.Qbser-Yed ,from .Fig- 14 that the .heat radiating ii'ns'42` thoughco-planarL insofar as their tipsraregcon? cerne'dare 0f greatest 1fr1gtlf1` at the. tenter, Qf the Section in conformitr with thepresen/ati@ ofthe urliformiwall thicknesspver thelength of the section.-`rl`he ns 42es;

, sentiallydetine the contour of the section withthecon duit 40 disposednear the front to form arrelatively long pathr` for the circulation offair therethrough and Vthus utilize thespace'occupied by thel radiatormostetedtiyely preferably integral and preferably fabricated as a unitand efficiently'. Ylvioreover, with the integral'construction Y tothe-iin surfaces isvobtainedflhetop ofV 1eachsection Y 24a to 24disvatfleast partiallyiclosed vby a deflector 44 integrally formed-'withfthe fins 42. With`thisarrange ment the heated air is deectedoutwardly'awayfrom the'walLto minimize ,soiling ofthe wall surface abovethe radiator and-'additional mechanical support is aiorded thensAZr/w.'if' a'. Y Y- Each heat exchanger section 24a through 24d includeslongitudinally elongatedY and preferably recessed mounting; hole"46extending ,therethrough to accommodate la screw Vor bolt (not shown),forVfixing each section 24'individually to the wall or Wallbaseboard in theassembly offtheV base-board radiator '20.,1`The elongation of themounting hole 46 is shown more clearly in Figure 2, the

hole being formed when the 'section is cast. In thisjway complicatedmounting means are avoided and contraction and expansion of the sectionor sections' due to' tempera; turegchangesis allowed for.

Y of the; conduit '40 and-'fins 42, maximumjtransfer of heatV from aheat resistant plastic'to permit a smooth self lubricating rotation. Theinput terminal'section is preferably die-cast inthe same manner asj'theradiator sections. By reason of the `improved arrangement of valveelements in terminal 26, twoy or Ymore inlet openings 52 and 54 may beprovided to facilitatejconnection of the radiator to the heating system.In the illustrated embodiment, eitherY of inlets 52Vand 54 may be usedfor mak- Inorder to'facilitate quick'and easy connection ofthe'sections24'a,r7Ab, etc; one to the other andto the end terminals, eachsection is provided at its ends with tapered male and female endconnectors denoted by the numerals 36 and 38, respectively. The maleconnector part 36 is die cast integrally with its associated radiatorsectionand has 'an opening corresponding to the shape and area of the,opening of conduit 40. The femalel connector part 38 isgin the form of atapered opening 38 for telescopically receiving the male Aconnector part36 of an` adjoining section in a drive -iit joint to form a water-'tightseal with ai continuous, uninterrupted passage through" both' sections.Preferably, a suitable heat Vresistant adhesive sealing compound is usedin the joints to insure a more positive fseal. i It willv beobserved'that any Vdesired length of exchange'rxsections togetherwithout cutting, `fitting, threading, welding-or soldering. f 'i'The'input terminalA section 26 which controls the/flowofY heated iluidto the heatexchanger comprises essentially Y.ai hollow tapered maleVconnecting .member .36a

vcommunicating "withi an Vexit passage 50 to permitfflow f to.-the1heatexchanger, rbottom and back entry ports'52,

54,'res'pec`tively, for accepting heat carrying uid fromV asupply pipe32, and a tapered orfconical valve charn- Vber 56." p

The-male connecting member36 is adapted to be seated inthe taperedopening 38 of the'heat exchanger section 24fin a drive4 iit joint in thesame manner as one section 24 is connectedrto the next. i The inputterminal section also comprises a rotatable valve member 58 which is inthe form of a truncated cone .Y as shown and seats in the conicalchamber 56. The lower ing connection with supply pipes of the heatingsystem. Asrshown Vin, Figure 1=theY supply pipe 32 extends up` wardlythrough the oor to connect withinlet 5.2 but it may extend forwardlythrough the wall, so as to connect with theback inlet 54. In, eithercase theunused inlet would Vbe plugged as by'means of-,a suitablethreaded plug(not shown), theinletrbeing usuitably threaded, as shown,to receive the plug. Thus, the installationV of the Vradiatoris notrestrictedfto a particular'mode of con'- Vnectionyand'there is no` needVfor conventional coupling means such as elbows and the like. The outletterminal section 28 for returning heat'carrying uid from thje'terminalheat exchanger section to the uid return pip/e4 34includes a taperedopening 38a for acceptinga Vtapered male connecting member such asthe'c'onnector part 36 offa radiator section124, an entry'port 70 forreceiving fluid from the enclosed channel 40 ofthe 'adjoining radiatorsection,exit port 72 and 74 forV connecting the terminal to an'outletpipe such as pipe 34 of FigureY 1 and ach'amber 76 Yinterconnecting theentry port 70 to the exit ports. Figures 6 and 8 illustrate the outletterminal 28and show the right angular relationship between the exitports.'V i

t A modified base-board radiator 20 is shown in Figure 12 andrincludesimproved locking means 80 for holding radiator may, thus be" obtained bycoupling the basic heat the sections24 and terminals'26 and 28 inposition .one relative Vtothe other. VAs embodied inthe basic radiatorsections, the locking means consists of a slot in one end of the basicsection and a'lip on Vthe other end. When tw adjacent sectionsaretelescoped together. the lip can be `spru'ngor driven into the slottoV prevent the sections from being pulled apart. This willY relieve theadhesive sealant of any strainin tension. 'Figure to 16 show details ofthis/improved feature.

' -f .Thecoupling locking means Y80 shown inFigS. 13 and -15 includesaVYgroove 82 spacedfromfthe base of the tapered' connecting -inember 36dby an inclined ramp 85.

A'tab 88 extends from the front wall ofthe adjointing radiator portionvand has va vertical groove 83 spaced from the end to Vform a 'taperedlatching member 84 whose front' face 86 isa prolongation of the 4wall 38 of the connector736.' /When adrive lit ioint-isbeing` established, thevlatch 84 Vis sprung slightlyl outward and rides over the inclinedsurface of the tapered `member 2 6' and the ramp 85. When the adjoiningradiator sections are properly connected the latch 84'engages theVgroove 82 to secure the connected sections one to the other.

" Figures 14 and 16Yillu`stratethis latchingV arrangement as applied tothe opposite Vend of a basic section 24 and terminal 28. The elements ofthese 'figures corresponding to' elements of Figures 13 and 15 have beendesignated byY like primed'numerals. `It will be understood that thelocking means rSilb, c` and d for connecting the successive radiator''sections one to the Aother are similarly yconstructed; 'j fif j `v Withthe` locking means as described above, the radiatorsectio'nsare firmlyand postivelysecured oneto the otherand ,will not separate even whensulaje'zfzgtedf,to continud vibration Vof 4sudden' changesinten'lperature -and the adhesive sealant is relieved of any strain intension.

While only certain embodiments of the invention have been described, itis apparent that modications, alterations and changes may be madewithout departing from the true scope and spirit of the presentinvention as dened by the appended claims.

What is claimed is:

1. A base-board radiator comprising: a die cast inlet terminal sectionhaving a tapered male connector part and having valve means including atapered valve member and a tapered valve seat therefor, for regulatingthe oW of heated iluid to the base-board radiator; a die cast outletterminal section for discharging uid from the base-board radiator, saidoutlet terminal having a tapered female connector part; and a pluralityof nned radiator sections coupled together in end-to-end relation and tosaid inlet and outlet terminal sections, each said radiator sectionincluding die cast top, bottom, front and rear walls integral with eachother and spaced apart to form an elongated substantially smooth-boreduid conduit extending lengthwise of the section from endto-end thereof,said conduit gradually increasing in size from the center toward bothends and terminating at its one end in an internally tapered femaleconnector part, and at its other end in an externally tapered maleconnector part, said male and female connector parts being coaxiallyaligned with each other and with the lengthwise axis of said conduit,and said top, bottom and rear walls only having, exteriorly, a set ofdie cast tapered heat radiating fins integral therewith, said fins beinggenerally parallel to each other and perpendicular to the lengthwiseaxis of said conduit, said ns also extending generally rearwardly fromsaid front wall to and beyond said rear wall, and having side wallswhich are converging in the direction from front to rear, said inletterminal having its male connector part sealingly, telescopicallyreceived in the tapered female connector part of the first of saidradiator sections, and said outlet terminal section sealingly,telescopically receiving in its tapered female connector part thetapered male connector part of the last of said radiatorV sections.

2. A base-board radiator in accordance with claim 1 in which the frontand rear walls of each radiator section are of substantially uniformthickness over substantially the length of said conduit.

3. A base-board radiator in accordance with claim 1 in which the frontand rear walls of each radiator section are provided each with anaperture for the passage of a fastening device from front to rear of thesection, the

apertures being interconnected and sealed off from said conduit by ahollow bridging member integral with said walls.

4. A base-board radiator in accordance with claim l in which the set ofheat-radiating tins is provided with a deflector member for dellectingheated air away from an adjoining wall, said deector member beingdisposed along the top edge of the lins of said set and integrallyconnected thereto.

5. A base-board radiator section comprising die cast top, bottom, frontand rear walls integral with each other and spaced apart to form anelongated substantially smooth-bored Huid conduit extending lengthwiseof the section from end-to-end thereof, said conduit graduallyincreasing in size from the center toward both ends and terminating atits one end in an internally tapered female connector part, and at itsother end in an externally tapered male connector part, said male andfemale connector parts being coaxially aligned with each other and withthe lengthwise axis of the conduit, and said top, bottom and rear wallsonly having exteriorly a set of die cast tapered heat radiating nsintegral therewith, said tins being generally parallel to each other andperpendicular to the lengthwise axis of said conduit, extendinggenerally rearwardly from said front wall to and beyond said rear wall,and having side walls which are converging in the direction from frontto rear.

6. A base-board radiator section in accordance with claim 5 in whichsaid front and rear walls are of substantially uniform thickness oversubstantially the length of said conduit.

References Cited in the le of this patent UNlTED STATES PATENTS 764,395Sweed et al. July 5, 1904 1,032,649 Beniek July 16, 1912 1,403,396Erickson Jan. 10, 1922 1,737,633 Beach Dec. 3, 1929 1,758,266 Smith May13, 1930 1,904,061 Larson Apr. 18, 1933 1,915,226 Hamacher June 20, 19331,940,152 Steele Dec. 19, 1933 1,962,837 Raible June 12, 1934 2,212,201Daly et al Aug. 20, 1940 2,692,762 Schenke Oct. 26, 1954 FOREIGN PATENTS18,625 Great Britain Sept. 21, 1895

